icnd_ppt_third01_路由介紹(完整版)
【正文】 work號 mask {下一跳的 address | interface}[distance] [permanent] Static Route Configuration 169。 2022, Cisco Systems, Inc. All rights reserved. ICND —517 Classful Routing Overview ? Classful routing protocols do not include the sub mask with the route advertisement. ? Within the same work, consistency of the sub masks is assumed. ? Summary routes are exchanged between foreign works. ? Examples of classful routing protocols: –RIP Version 1 (RIPv1) –IGRP 169。 2022, Cisco Systems, Inc. All rights reserved. ICND —525 Summary ? Routing is the process by which an item gets from one location to another. In working, a router is the device used to route traffic. ? Routers can forward packets over static routes or dynamic routes, based on the router configuration. ? Static routes can be important if the Cisco IOS software cannot build a route to a particular destination. Static routes are also useful for specifying a “gateway of last resort” to which all unroutable packets will be sent. ? A default route is a special type of static route used for situations when the route from a source to a destination is not known or when it is unfeasible for the routing table to store sufficient information about the route. 169。 2022, Cisco Systems, Inc. All rights reserved. ICND —519 Routing Protocol Comparison Chart 169。 2022, Cisco Systems, Inc. All rights reserved. ICND —511 Default Routes ? This route allows the stub work
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